how many hardcore physics are buffs here?
is your poison of choice the Lambda-CDM model or the string/M theory model?
is standard model right or loop quantum gravity right?
is everything a string or Einstein wrong?
just drunk and curious...
(topic taken from Big Bang Theory, where sheldon tries teaching penny physics)
Physic's - 6th century BC
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nasty_wolverine
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Physic's - 6th century BC
Elysian Door - Naraka (my WIP PC STG) in development hell for the moment
Re: Physic's - 6th century BC
I'm a physics major, and I don't want to sound pretentious by trying to answer any of those questions. I just haven't studied enough modern physics to form a solid opinion.
GaijinPunch wrote:Ketsui with suction cup.
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mesh control
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Re: Physic's - 6th century BC
Same.moh wrote:I'm a physics major, and I don't want to sound pretentious by trying to answer any of those questions. I just haven't studied enough modern physics to form a solid opinion.
First year, climbing out of the hole I dug in high school.
I will say that I'm currently obsessed with biophysics.
edit: As far as I understand, string theory exist (?, not the correct term) explain a phenomena, only if a higgs like field does not exist. (from my understanding, but I'm not very well read on the subject. That's why this sentence is a wreck.)
I can bombard the thread with lectures, I suppose.
lol
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nasty_wolverine
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Re: Physic's - 6th century BC
Never studied physics academically... but i was always interested in physics... I know the theories and concepts, but i cant do the maths, thats why i have been trying to learn them.
well atleast from what i understand-
Standard Model: this what is generally taught in universities. has about 21 hand added constants to work properly. cant explain gravity on quantum scales and a few more flaws but otherwise is damn solid model.
String theory: says all particles are fundamentally plank length strings in 11 dimensions. and ordinary matter is different energy modes of strings. universes exist on n+1 dimensional branes in 11 dimensional bulk. elegant maths which does demonstrate that it works but no testable results for finding strings.
Loop quantum gravity: space-time is quantized(like particles) so space can bunch up and have densities. did not read too much into this yet.
above stuff is mostly quantum mechanics. The last two actually extends to cover universe models too.
current model of evolution of the universe is the Lambda-CDM model which goes as such-
The universe started from a singularity around 13.6 billion years ago, followed by massive expansion called the cosmic inflation. after around 300 million years it became transparent from photon decoupling which resulted in the Cosmic Microwave Background Radiation we see today, after which the first stars and galaxies formed. This universe is dominated by 72% dark energy (or positive cosmological constant, which causes the universe to expand and its accelerating) and 24% Cold Dark matter (we dont know what this is but it acts gravitationally and helps form galaxies) and rest mere 4% everyday matter.
What boggles my mind is we dont know what 96% of the universe is made off!
And if that isnt enough, google "Space Roar"
well atleast from what i understand-
Standard Model: this what is generally taught in universities. has about 21 hand added constants to work properly. cant explain gravity on quantum scales and a few more flaws but otherwise is damn solid model.
String theory: says all particles are fundamentally plank length strings in 11 dimensions. and ordinary matter is different energy modes of strings. universes exist on n+1 dimensional branes in 11 dimensional bulk. elegant maths which does demonstrate that it works but no testable results for finding strings.
Loop quantum gravity: space-time is quantized(like particles) so space can bunch up and have densities. did not read too much into this yet.
above stuff is mostly quantum mechanics. The last two actually extends to cover universe models too.
current model of evolution of the universe is the Lambda-CDM model which goes as such-
The universe started from a singularity around 13.6 billion years ago, followed by massive expansion called the cosmic inflation. after around 300 million years it became transparent from photon decoupling which resulted in the Cosmic Microwave Background Radiation we see today, after which the first stars and galaxies formed. This universe is dominated by 72% dark energy (or positive cosmological constant, which causes the universe to expand and its accelerating) and 24% Cold Dark matter (we dont know what this is but it acts gravitationally and helps form galaxies) and rest mere 4% everyday matter.
What boggles my mind is we dont know what 96% of the universe is made off!
And if that isnt enough, google "Space Roar"
Elysian Door - Naraka (my WIP PC STG) in development hell for the moment
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TransatlanticFoe
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Re: Physic's - 6th century BC
Theoretical physics is insane. I'm glad I had a whole group doing the theory for my PhD, because I just about got my head around it by the time I was done.
Your relativity and strings are fairly nice when explained in basic terms, look any deeper and your brain is in for a rough ride.
Your relativity and strings are fairly nice when explained in basic terms, look any deeper and your brain is in for a rough ride.
Re: Physic's - 6th century BC
I have a masters in physics from an unremarkable state university*. I consider myself an expert in special relativity 
. I found Bell's Spaceship paradox on my own, and fought all my professors on this subject constantly. Only after graduating did I find out its history and name, thanks to physicsforums.com . It is such a relief to now know that I have giants like Bell and Born on my side.
Higher physics is fucking nuts hard. What I'm proud of is algebra.
*In my experience if you are a US citizen with a BS these graduate programs will pay you to attend.
. I found Bell's Spaceship paradox on my own, and fought all my professors on this subject constantly. Only after graduating did I find out its history and name, thanks to physicsforums.com . It is such a relief to now know that I have giants like Bell and Born on my side.Higher physics is fucking nuts hard. What I'm proud of is algebra
.*In my experience if you are a US citizen with a BS these graduate programs will pay you to attend.
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mesh control
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Re: Physic's - 6th century BC
Where and what did you get your BS in?
antron wrote:Higher physics is fucking nuts hard.
lol
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mesh control
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Re: Physic's - 6th century BC
I get to go to SLAC at Stanford next month, so I'll post a write up and some pictures when that's over.
lol
Re: Physic's - 6th century BC
^EE
SLAC, cool. I use some of their old monte carlo code (egs4).
SLAC, cool. I use some of their old monte carlo code (egs4).